CN211553657U - Liquid density measuring meter based on magnetostrictive principle - Google Patents
Liquid density measuring meter based on magnetostrictive principle Download PDFInfo
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- CN211553657U CN211553657U CN201922172539.6U CN201922172539U CN211553657U CN 211553657 U CN211553657 U CN 211553657U CN 201922172539 U CN201922172539 U CN 201922172539U CN 211553657 U CN211553657 U CN 211553657U
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- magnetostrictive
- measuring rod
- floating ball
- liquid density
- retainer ring
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Abstract
The utility model discloses a liquid density measurement meter based on magnetostrictive principle relates to liquid density measurement meter technical field. The utility model comprises a magnetostrictive displacement sensor part, which comprises a magnetostrictive measuring rod and an electronic cabin, wherein the magnetostrictive measuring rod is provided with an upper retainer ring and a lower retainer ring, the magnetostrictive measuring rod is sleeved and matched with a floating ball in a sliding way, permanent magnets are embedded in the floating ball along the spacing pore canal in an evenly surrounding way, and the magnetostrictive measuring rod is sleeved with a spring; the spring is provided with one connected between the floating ball and the upper retainer ring, or connected between the floating ball and the lower retainer ring, or simultaneously provided with two connected between the floating ball and the upper retainer ring and the lower retainer ring respectively. The utility model discloses make full use of's magnetostrictive liquid displacement sensor's performance advantage, long-term job stabilization nature is good, convenient to use, the operation of being convenient for has good reliability, the precision is high, convenient to use, moderate characteristics of price, and this product cost is lower relatively, the sexual valence relative altitude.
Description
Technical Field
The utility model belongs to the technical field of the liquid density measurement meter, especially, relate to a liquid density measurement meter based on magnetostrictive principle.
Background
To determine the density of an object, it is common to first determine its volume and weight, and then obtain density data by calculation. For density measurement of liquids, the density of liquids is also often determined in laboratories by means of buoyancy, i.e. by measuring the buoyancy to which a volume of an object is subjected in a liquid according to archimedes' law, but this method is basically used in laboratories.
How to directly examine industrial online measurement products and ensure that the liquid density can be monitored online in real time, the liquid density measuring meter has the problems of high precision, reliable performance, good long-term stability, convenient use and moderate cost, and therefore, the liquid density measuring meter based on the magnetostrictive principle has important significance for solving the problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a liquid density meter based on magnetostrictive principle, make full use of's magnetostrictive liquid displacement sensor's performance advantage, long-term job stabilization nature is good, convenient to use, and the operation of being convenient for has good reliability, the precision is high, convenient to use, the moderate characteristics of price, and this product cost is lower relatively, the sexual valence relative altitude.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model discloses a liquid density measurement meter based on magnetostrictive principle, including magnetostrictive displacement sensor part, magnetostrictive displacement sensor part includes the magnetostrictive measuring rod of vertical setting, sets up in the electronic storehouse at magnetostrictive measuring rod top, be provided with unmovable last retaining ring and lower retaining ring on the magnetostrictive measuring rod, it has a floater to lie in on the magnetostrictive measuring rod and cup joint and sliding fit between retaining ring and the lower retaining ring, the vertical spacing pore with magnetostrictive measuring rod clearance fit that is provided with in the floater, it has annular permanent magnet to encircle embedded along spacing pore equipartition in the floater, the spring has been cup jointed on the magnetostrictive measuring rod.
Furthermore, the spring is provided with one connected between the floating ball and the upper retainer ring, or connected between the floating ball and the lower retainer ring, or simultaneously provided with two connected between the floating ball and the upper retainer ring and the lower retainer ring respectively.
Further, the inner end and the outer end of the annular permanent magnet are opposite in polarity, and the annular permanent magnet forms an annular magnetic field around the magnetostrictive measuring rod.
Further, the force applied to the spring is proportional to the displacement deformation amount generated by the spring.
Furthermore, a front damper matched with the top end of the magnetostrictive measuring rod and an echo detection mechanism for echo detection are arranged in the electronic bin.
The utility model discloses following beneficial effect has:
the utility model discloses a organically combine electric float level gauge and magnetostrictive displacement sensor together, formed a novel product, make full use of's magnetostrictive displacement sensor's performance advantage, long-term job stabilization nature is good, convenient to use, the operation of being convenient for has good reliability, precision height, convenient to use, the moderate characteristics of price, and this product cost is lower relatively, the sexual valence relative altitude. Meanwhile, the product also widens the application range of the magnetostrictive displacement sensor, can be directly applied to industrial on-line measurement, and opens up a new field for the development and popularization of the magnetostrictive technology.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a liquid density measuring meter based on the magnetostrictive principle according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a liquid density measuring meter based on the magnetostrictive principle according to embodiment 2 of the present invention;
fig. 3 is a schematic structural view of a liquid density measuring meter based on the magnetostrictive principle according to embodiment 3 of the present invention;
fig. 4 is a schematic view of the working principle of the magnetostrictive displacement sensor according to the present invention;
fig. 5 is a schematic waveform diagram of an echo when the magnetostrictive displacement sensor of the present invention operates;
in the drawings, the components represented by the respective reference numerals are listed below:
the method comprises the following steps of 1-an electronic bin, 2-a magnetostrictive measuring rod, 3-an upper check ring, 4-a spring, 5-a floating ball, 501-an annular permanent magnet, 502-a limiting hole channel, 6-a lower check ring, 7-a front damper and 8-an echo detection mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "vertical," "top," "clearance fit," "inner," "peripheral side," and the like are used for the purpose of facilitating the description of the invention and simplifying the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
Example 1:
please refer to fig. 1, the utility model discloses a liquid density meter based on magnetostrictive principle, including magnetostrictive displacement sensor part, magnetostrictive displacement sensor part includes the magnetostrictive measuring rod 2 of vertical setting, set up in the electron bin 1 at magnetostrictive measuring rod 2 top, be provided with unmovable last retaining ring 3 and lower retainer ring 6 on the magnetostrictive measuring rod 2, it has a floater 5 to lie in cup jointing and sliding fit between last retaining ring 3 and lower retainer ring 6 on the magnetostrictive measuring rod 2, the vertical spacing pore 502 with magnetostrictive measuring rod 2 clearance fit that is provided with in the floater 5, it has annular permanent magnet 501 to encircle to embed along spacing pore 502 equipartition in the floater 5, spring 4 has been cup jointed on the magnetostrictive measuring rod 2.
Wherein, spring 4 is provided with one and connects between floater 5 and last retaining ring 3, and the both ends of spring 4 are fixed with floater 5 top and last retaining ring 3 bottom end respectively and are linked to each other.
The inner end and the outer end of the annular permanent magnet 501 have opposite polarities, and the annular permanent magnet 501 forms an annular magnetic field around the magnetostrictive rod 2.
Wherein, the stress of the spring 4 is in direct proportion to the displacement deformation amount generated by the spring.
Wherein, be provided with in the electron bin 1 with the front damper 7 of magnetostrictive measuring rod 2 top matched with and be used for echo detection's echo detection mechanism 8.
The liquid density measuring meter utilizes Archimedes' law, the phenomenon that the buoyancy of the floating ball 5 in liquid with higher density is larger is utilized, the buoyancy of the floating ball 5 acts on the spring 4 to generate deformation, the annular permanent magnet 501 is embedded in the floating ball 5, the magnetostrictive displacement sensor can measure the position of the floating ball 5 relative to the magnetostrictive measuring rod 2, and then the density data of the liquid can be calculated, and the liquid density measuring meter can simultaneously measure a plurality of parameters such as liquid level, interface, density and the like.
Example 2:
the difference between this embodiment and embodiment 1 is that the spring 4 is provided with a connection between the floating ball 5 and the lower retainer 6, and two ends of the spring 4 are fixedly connected with the bottom end of the floating ball 5 and the top end of the lower retainer 6, respectively.
Example 3:
the difference between this embodiment and embodiment 1 is that two springs 4 are simultaneously disposed and respectively connected between the floating ball 5 and the upper retainer ring 3, and the lower retainer ring 6, two ends of one spring 4 are respectively fixedly connected to the top end of the floating ball 5 and the bottom end of the upper retainer ring 3, and two ends of the other spring 4 are respectively fixedly connected to the bottom end of the floating ball 5 and the top end of the lower retainer ring 6.
The utility model discloses a theory of operation is:
the liquid density measuring meter utilizes Archimedes' law, the phenomenon that the buoyancy of a floating ball 5 in liquid with higher density is larger is utilized, the buoyancy of the floating ball 5 acts on a spring 4 to generate deformation, an annular permanent magnet 501 is embedded in the floating ball 5, an electronic cabin 1 can measure the position of the floating ball 5 relative to a magnetostrictive measuring rod 2, then density data of the liquid where the floating ball 5 is located can be calculated, and when the liquid density measuring meter is used for measuring, in order to ensure the precision, the magnetostrictive measuring rod 2 is vertical, and the liquid level of the measured liquid is immersed above an upper baffle ring 3;
as shown in fig. 4, which shows the main internal structure of a magnetostrictive displacement sensor, it includes: a waveguide wire (equivalent to a magnetostrictive measuring rod 2), an echo detection mechanism 8, a magnetic ring (equivalent to a floating ball 5), an annular permanent magnet 501, a front damper 7 and a rear damper (equivalent to a spring 4); when the magnetostrictive displacement sensor works, the measuring circuit firstly generates a current excitation, and the current forms a ring-shaped magnetic field around the waveguide wire and propagates at the speed of light. When the annular magnetic field intersects with the magnetic field generated by the annular permanent magnet 501 in the magnetic ring (floating ball 5), the waveguide wire generates a mechanical torsional vibration due to the magnetostrictive effect. The vibrations are transmitted back in the form of mechanical waves and picked up by the echo detection means 8. The unwanted echo will be absorbed by the front damper 7 and the spring 4. By measuring the time difference between the emission pulse and the echo pulse, the relative position of the magnetic ring (the floating ball 5) on the measuring rod can be calculated, so that the position data of the magnetic ring (the floating ball 5) can be achieved.
As shown in fig. 5, which shows a schematic diagram of the waveform of the echo when the magnetostrictive displacement sensor is in operation. The horizontal axis is a time coordinate, and the vertical axis is the voltage amplitude of the echo detection signal. In the figure: l is the position length of the magnetic ring (floating ball 5) relative to the magnetostrictive measuring rod 2; t is the echo propagation time between the transmit pulse and the echo pulse. When t is obtained through measurement, the required position data of the magnetic ring (the floating ball 5) can be calculated according to the propagation speed v of the echo wave on the waveguide wire. The formula is as follows: l ═ v · t.
The spring 4 may be an extension spring or a compression spring. The premise is that one section of the spring is fixed with the floating ball, and the other end of the spring is fixed with the upper retainer ring or the lower retainer ring.
Compared with the prior art, the utility model the following advantage including:
the utility model discloses a organically combine electric float level gauge and magnetostrictive displacement sensor together, formed a novel product, make full use of's magnetostrictive displacement sensor's performance advantage, long-term job stabilization nature is good, convenient to use, the operation of being convenient for has good reliability, precision height, convenient to use, the moderate characteristics of price, and this product cost is lower relatively, the sexual valence relative altitude. Meanwhile, the product also widens the application range of the magnetostrictive displacement sensor, can be directly applied to industrial on-line measurement, and opens up a new field for the development and popularization of the magnetostrictive technology.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A liquid density measuring meter based on the magnetostrictive principle comprises a magnetostrictive displacement sensor part, wherein the magnetostrictive displacement sensor part comprises a vertically arranged magnetostrictive measuring rod (2) and an electronic bin (1) arranged at the top of the magnetostrictive measuring rod (2), and is characterized in that:
be provided with unmovable last retaining ring (3) and lower retaining ring (6) on magnetostrictive measuring rod (2), it cup joints and sliding fit has a floater (5) to lie in between last retaining ring (3) and lower retaining ring (6) on magnetostrictive measuring rod (2), vertically in floater (5) be provided with one with magnetostrictive measuring rod (2) clearance fit's spacing pore (502), it has annular permanent magnet (501) to encircle embedded along spacing pore (502) equipartition in floater (5), spring (4) have been cup jointed on magnetostrictive measuring rod (2).
2. A liquid density meter based on the magnetostrictive principle according to claim 1, characterized in that the spring (4) is provided with one connecting between the float (5) and the upper retainer (3), or between the float (5) and the lower retainer (6), or both connecting between the float (5) and the upper retainer (3) and the lower retainer (6).
3. A liquid density meter based on the magnetostrictive principle according to claim 1, characterized in that the ring-shaped permanent magnet (501) has an inner end and an outer end with opposite polarity, the ring-shaped permanent magnet (501) forming a ring-shaped magnetic field around the magnetostrictive measuring rod (2).
4. A liquid density meter based on the magnetostrictive principle according to claim 1, characterized in that the force exerted by the spring (4) is proportional to the displacement deformation thereof.
5. A liquid density meter based on the magnetostrictive principle according to claim 1, characterized in that a front damper (7) which is matched with the top end of the magnetostrictive measuring rod (2) and an echo detection mechanism (8) for echo detection are arranged in the electronic chamber (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922172539.6U CN211553657U (en) | 2019-12-06 | 2019-12-06 | Liquid density measuring meter based on magnetostrictive principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922172539.6U CN211553657U (en) | 2019-12-06 | 2019-12-06 | Liquid density measuring meter based on magnetostrictive principle |
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| CN211553657U true CN211553657U (en) | 2020-09-22 |
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| CN201922172539.6U Expired - Fee Related CN211553657U (en) | 2019-12-06 | 2019-12-06 | Liquid density measuring meter based on magnetostrictive principle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255140A (en) * | 2020-10-10 | 2021-01-22 | 柳州工学院 | Intelligent liquid density detector |
| CN114739484A (en) * | 2022-05-12 | 2022-07-12 | 成都西巨科技有限公司 | Micro-pulse sensor for measuring liquid level and density of gasoline or diesel oil and measuring method thereof |
| CN114837148A (en) * | 2022-04-02 | 2022-08-02 | 长江大学 | Quick recovery device for marine petroleum pollution |
| CN116429634A (en) * | 2023-06-14 | 2023-07-14 | 广东润宇传感器股份有限公司 | Density measuring equipment based on magnetostriction principle and application method thereof |
-
2019
- 2019-12-06 CN CN201922172539.6U patent/CN211553657U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255140A (en) * | 2020-10-10 | 2021-01-22 | 柳州工学院 | Intelligent liquid density detector |
| CN112255140B (en) * | 2020-10-10 | 2023-07-25 | 柳州工学院 | Intelligent detector for liquid density |
| CN114837148A (en) * | 2022-04-02 | 2022-08-02 | 长江大学 | Quick recovery device for marine petroleum pollution |
| CN114837148B (en) * | 2022-04-02 | 2024-03-15 | 长江大学 | Rapid recovery device for offshore petroleum pollution |
| CN114739484A (en) * | 2022-05-12 | 2022-07-12 | 成都西巨科技有限公司 | Micro-pulse sensor for measuring liquid level and density of gasoline or diesel oil and measuring method thereof |
| CN116429634A (en) * | 2023-06-14 | 2023-07-14 | 广东润宇传感器股份有限公司 | Density measuring equipment based on magnetostriction principle and application method thereof |
| CN116429634B (en) * | 2023-06-14 | 2023-09-26 | 广东润宇传感器股份有限公司 | Density measuring equipment based on magnetostriction principle and application method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200922 Termination date: 20211206 |